Dr Hertog researches family trends in Japan, as well as the broader context in which the individual choices that form these trends take place. Her particular interests include the childbearing choices of unmarried Japanese women and how they are affected by welfare systems, legal institutions and economic trends.
- Marriage formation
- Contemporary Japanese families
- Single motherhood in contemporary Japan (related welfare, legal and labour market issues as well as associated social norms)
- Marriage trends in contemporary Japan
- Low birth rate in contemporary Japan